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A contusion is the discoloration of the skin, which results from underlying muscle fibers and connective tissue being crushed. This can happen in a variety of ways such as a direct blow to the skin, or a fall taken against a hard surface. The discoloration in the skin is present when blood begins to pool around the injury.
A common sign of a bite from a venomous snake is the presence of two puncture wounds from the animal's fangs. [1] Sometimes venom injection from the bite may occur. [3] This may result in redness, swelling, and severe pain at the area, which may take up to an hour to appear. [1] [2] Vomiting, blurred vision, tingling of the limbs, and sweating ...
Subcutaneous emphysema can result from puncture of parts of the respiratory or gastrointestinal systems. Particularly in the chest and neck, air may become trapped as a result of penetrating trauma (e.g., gunshot wounds or stab wounds) or blunt trauma. Infection (e.g., gas gangrene) can cause gas to be trapped in the subcutaneous tissues.
Abdominal CT showing left renal artery injury. Blunt abdominal trauma (BAT) represents 75% of all blunt trauma and is the most common example of this injury. [3] Seventy-five percent of BAT occurs in motor vehicle crashes, [4] in which rapid deceleration may propel the driver into the steering wheel, dashboard, or seatbelt, [5] causing contusions in less serious cases, or rupture of internal ...
There are reports of stingers breaking off in wounds, but this may be rare. [ weasel words ] [ 6 ] This would not be fatal to the stingray as it will be regrown at a rate of about 1.25 to 2 centimetres (0.49 to 0.79 in) per month (though with significant variations depending on the size of the stingray and the exact species).
Stab wounds occur four times more than gunshot wounds in the United Kingdom, but the mortality rate associated with stabbing has ranged from 0–4% as 85% of injuries sustained from stab wounds only affect subcutaneous tissue. [7] [9] [27] In Belgium, most assaults resulting in a stab wound occur to and by men and persons of ethnic minorities. [28]
Penetrating trauma is an open wound injury that occurs when an object pierces the skin and enters a tissue of the body, creating a deep but relatively narrow entry wound.In contrast, a blunt or non-penetrating trauma may have some deep damage, but the overlying skin is not necessarily broken and the wound is still closed to the outside environment.
Timing is important to wound healing. Critically, the timing of wound re-epithelialization can decide the outcome of the healing. [11] If the epithelization of tissue over a denuded area is slow, a scar will form over many weeks, or months; [12] [13] If the epithelization of a wounded area is fast, the healing will result in regeneration.